From a reader:

Hi Jonah,
In reference to your vampire theme, here is a remark from Daybreakers star Ethan Hawke:
“It takes place in the future and the whole world is vampires. We’re eating our own resources so people are trying to come up with blood substitutes, trying to get us off of foreign humans. It’s a huge allegory for where we are.”
And I thought it was only us paranoid conservatives that were reading political messages in fantasy films.
No doubt Texas Chainsaw Massacre was really an allegory about the immorality of wearing leather.